Underwater propulsion device



FIG. 1 is a front perspective view of an underwater propulsion device.

FIG. 2 is a rear perspective view thereof.

FIG. 3 is a top view thereof.

FIG. 4 is a bottom view thereof.

FIG. 5 is a front view thereof.

FIG. 6 is a rear view thereof.

FIG. 7 is a right side view thereof; and,

FIG. 8 is a left side view thereof.

The broken line subject matter in FIGS. 4 and 6 depict inside portions of the underwater propulsion device that form no part of the claimed design. 

CLAIM The ornamental design for an underwater propulsion device, as shown and described. 